听筒

ting1 tong3

telephone receiver; headphone; earphone; earpiece; stethoscope

甜筒

tian2 tong3

the cone of ice-cream cone

手电筒

shou3 dian4 tong3

flashlight; electric hand torch

滚筒

gun3 tong3

roller; cylinder (machine part); drum

话筒

hua4 tong3

microphone; (telephone) receiver; handset